by Elisa Chisari | Dec 11, 2014 | Daily Paper Summaries
When two observations share some common information, they can be “cross-correlated” to extract it. In today’s example, we discover what the matter halos and energetic phenomena in the Universe have in common through a cross-correlation.
by Elisa Chisari | Jul 24, 2013 | Daily Paper Summaries
Gravitational lensing causes distortions in the polarization of the Cosmic Microwave Background. In this astrobite, we discuss recent results from the South Pole Telescope collaboration measuring patterns caused by lensing in the CMB polarization. What do these patterns tell us about the Universe?
by Astrobites | Mar 30, 2013 | Daily Paper Summaries
In today’s astrobite, we continue our overview of the papers from the Planck 2013 release. This time, we review papers XVII and XXIII, which discuss weak gravitational lensing of the Cosmic Microwave Background, and the isotropy of the Universe at the time this background radiation was emitted.
by Nick Hand | Feb 18, 2012 | Daily Paper Summaries
The South Pole Telescope collaboration detects the effects of gravitational lensing on the cosmic microwave background and derives improved constraints on several cosmological parameters.